Abstract
The stenopodaine assassin bug, Caunus noctulus Hsiao, has a distinct sexual dimorphism. In this paper the morphological characters of this species are redescribed based on the holotype and other materials. Illustrations of habitus, head, prono-tum, and other structures are provided to facilitate recognition of this little known reduviid. Caunus Stal is a small genus of Stenopodainae. Sixteen species are known worldwide (Putshkov & Putshkov 1985; Maldonado-Capriles 1990), most of them are distributedin the Ethiopian Region; however, two are Oriental species, Caunus farinator Reuter from India and Caunus noctulus Hsiao from China (Distant 1904; Hsiao 1977; Hsiao & Ren 1981; Maldonado-Capriles 1990; Putshkov & Putshkov 1996) and Japan (Ishikawa et al.2005).
NSTL